I recently removed a dividing wall that housed a couple of light switches in them. I want to re-site them behind some wood panelling but the length of wire is short by a couple of feet. Obviously the sensible thing to do is replace the whole length of wire with the correct length but the other end goes up in to the roof space (extension with flat roof) and I have virtually no access to it. Can I use a junction box that would be hidden behind the wood panelling. Although I think junction boxes should be accessible? How else can I join the wiring?
Thanks.